FILTER HAVING MULTILAYERED STRUCTURE FOR FILTERING IMPURITY PARTICLES FROM MOLTEN METAL
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United States of America Patent
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Issued Date -
Sep 30, 2010
app pub date -
Jul 21, 2008
filing date -
Oct 30, 2007
priority date (Note) -
Abandoned
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Abstract
A filter has a multi-layered structure for removing impurity particles from a molten metal. The filter includes: a plurality of filter layers sequentially disposed along the flow direction of the molten metal in a downward direction and comprising a plurality of pore channels, wherein the filter layers disposed upstream comprise larger pore channels than those of the filter layers disposed downstream.
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